Eau Galle

Eau Galle is a buttress dam located in Dunn County, Wisconsin, built in 1913. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Eau Galle

The primary purpose of Eau Galle is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Eau Galle Renewable Energy Co. (local government). It impounds the Eau Galle near Eau Galle.

The dam stands 31 feet tall and stretches 171 feet across, creates a reservoir covering 350 acres, has a maximum storage capacity of 2,070 acre-feet, and collects water from a drainage area of 173 square miles. Completed in 1913, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/18/2022.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateWisconsin
CountyDunn
Nearest CityEau Galle
River/StreamEau Galle
Coordinates44.69386, -92.01022

Physical Characteristics

Dam TypeButtress
NID Height31 ft
Dam Height31 ft
Dam Length171 ft
Year Completed1913 (113 years old)

Storage & Hydraulics

NID Storage2,070 acre-ft
Max Storage2,070 acre-ft
Normal Storage2,070 acre-ft
Surface Area350 acres
Drainage Area173 sq mi
Max Discharge20,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerEau Galle Renewable Energy Co.
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection05/18/2022
Emergency Action PlanNot Required

Identifiers

NID IDWI00008
Federal IDWI00008
More InfoState Dam Safety Program

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